Affairs in East Tennessee.
Bristol, Feb. 24.
--A letter to the Gazette, from Powell's river, near Cumberland Gap, dated the 20th, states that several Yankee regiments lately passed through the Gap, en route North on sixty days furlough.
They declared their purpose never to return.--Grant has refused any more furloughs.
There is no more re-enlisting in the Yankee army.
There are only five regiments at Cumberland Gap.
These are closely besieged and suffering for supplies, and the evacuation of the Gap is expected.
Tony Jones, a notorious tory, of Claiborne county, was captured near Tazewell a few days ago.